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Finding the Fourth Proportional to 132,644.52, 183,052.98 and 72,217.71

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Solution

The fourth proportional to 132,644.52, 183,052.98 and 72,217.71 is: 99,662.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,644.52 : 183,052.98 = 72,217.71 : x
  2. Step 2: Convert to fraction form
    132,644.52/183,052.98 = 72,217.71/x
  3. Step 3: Cross multiply
    132,644.52x = 183,052.98 × 72,217.71
  4. Step 4: Simplify right side
    132,644.52x = 13,219,667,024.28
  5. Step 5: Solve for x
    x = 13,219,667,024.28/132,644.52
  6. Step 6: Final answer
    x = 99,662.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.